Because of​ Earth's curvature, a person can see a limited distance to the horizon. The higher the location of the​ person, the farther that person can see. The distance D in miles to the horizon can..

Question

be estimated by D(h) = 1.22√h, where h is the height of the person above the ground in feet. Find D for a 3 foot tall person standing on level ground.

For a 3 foot tall person standing on level ground, D is about blank miles. (Round to the nearest integer as needed)

I got 2.11 miles. Would that be correct?

Because of​ Earth's curvature, a person can see a limited distance to the horizon. The higher the location of a​ person, the farther that person can see. The distance D in miles to the horizon can be estimated by D(h) = 1.22√h, where h is the height of the person above the ground in feet. How high does a person need to be to see 40 miles?

A person needs to be about blank feet high. (Do not round until the final answer. Then round to the nearest foot as needed)

I got 1074 feet high. Would that be correct?

Answer 1

D(3) = 1.22√3

D(3) = (1.22)(1.732)

D(3) = 2.113

40 = 1.22√h

32.787 = √h

1074.98 = h